In doesn't end there... all owner's of Killing Floor now receive 2 guest passes to hand out to friends that want to play free for three days!

Updates for Killing Floor have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Four of the top maps from the Killing Floor Grindhouse Custom Map Making Competition:

KF-Icebreaker - Winner of the $10,000 grand prize in the mapping competition and one of the most ambitious, creative, and visually stunning Killing Floor maps ever made, Icebreaker is set on a large icebreaking ship that is pitching and rolling in the middle of a fierce storm.

KF-Departed - Winner of second place in the final wave of the mapping competition, Departed is a visually impressive level set in an industrial city area outside of London. Featuring hectic gameplay this map plays as good as it looks.

KF-Crash - Winner of third place in the final wave of the mapping competition, Crash is an impressive remake of a classic custom map for the original Killing Floor mod. The map is set in an urban storage facility where your teamâs helicopter has crashed.

KF-FilthsCross - Winner of second place in the first wave of the mapping competition, FilthsCross is both incredibly fun and intense. Be warned, this map set in an Underground tube station is one of the most challenging Killing Floor maps ever made.